Arquivos Brasileiros de Cardiologia (Dec 2003)

Distribuição dos escores de cálcio coronariano determinados pela tomografia ultra-rápida em 2.253 homens brancos assintomáticos Distribution of coronary artery calcium scores determined by ultrafast computed tomography in 2.253 asymptomatic white men

  • Romeu S. Meneghelo,
  • Raul D. Santos,
  • Breno Almeida,
  • Jairo Hidal,
  • Tania Martinez,
  • Renato Moron,
  • José Antonio F. Ramires,
  • Fabio Nasri

DOI
https://doi.org/10.1590/S0066-782X2003002100003
Journal volume & issue
Vol. 81
pp. 27 – 31

Abstract

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OBJETIVO: Descrever a distribuição dos escores de cálcio coronariano numa população de homens brasileiros brancos assintomáticos submetidos à avaliação pela tomografia ultra-rápida. MÉTODOS: Foram avaliados 2.253 homens de 22-88 anos, submetidos a exame tomográfico num aparelho ImatronR C150 para detecção do cálcio coronariano. Os dados foram separados em 7 faixas etárias: 65 anos. RESULTADOS: A média e o desvio padrão da idade foram de 50,0 ± 9,7 anos. Em 48,8% dos casos ocorreu incidência de escore de cálcio coronário > zero, que apresentou distribuição não Gaussiana e mostrou grande variação para a mesma faixa etária. Houve correlação direta entre a idade e o escores de cálcio coronariano (r=0,4, pOBJETIVE: To describe the distribution of coronary artery calcium scores in a population of asymptomatic white Brazilian men undergoing assessment with ultrafast computed tomography. METHODS: The study assessed 2.253 men aged 22 to 88 years undergoing computed tomography in an ImatronR C150 device for detecting coronary calcium. Data were divided based on the patient's age into 7 groups: 65 years. RESULTS: The mean and standard deviation of age were 50.0 ± 9.7 years. In 48.8% of the cases, the coronary artery calcium score was > zero, with a non-Gaussian distribution and a large variation for the same age group. A direct correlation between age and the coronary artery calcium score was observed (r=0.4, P<0.01). Except for the comparison of individuals in the age groups 60-64 years, below 55-60 years, and above 65 years, the older the age group, the greater the medians of the coronary artery calcium scores (P<0.0001). Coronary artery calcium scores were reported according to the 25th, 50th, 75th, and 90th percentiles for the age groups. CONCLUSION: This study, the first to report the distribution of the coronary artery calcium scores in a sample of white Brazilian men, may be useful for stratifying the risk of coronary events.

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